JP2004118480A - Method and system for managing history of manufacturing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and system for managing history of manufacturing, which can easily inform the history of the occurrence failed products on a basis of each production process, after the products are shipped by reading the histories of failed products on the basis of each production process, which can easily be written in a memory means. <P>SOLUTION: The system comprises a memory means 12, and a read and write means 20 for an identifier 10 to be fabricated into the products, which reads the history written about the occurrence of failed products, and also writes the history of the failed products, on the basis of each production process with respect to the memory 12 of the identifier 10. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manufacturing history management device and a management method.
[0002]
[Prior art]
In Patent Document 1, a system management computer issues a defect code book in which a barcode label in which information about products and sets is recorded and a defect code indicating the content of the defect is recorded, and quality in an assembly process and an inspection process The bar code and defect code are read during management to recognize the content and number of defects that have occurred, and the production line when the content and / or number of defects has exceeded a predetermined production line stop condition. A set history management system is described in which is stopped. In this set history management system, a set history is stored, and when a defect is detected, a set history of a product having the same set history is output, thereby preventing shipment and recurrence of the same defect.
[0003]
Patent Document 2 discloses an electronic circuit unit for controlling data communication with the outside, and electric power necessary to operate the electronic circuit unit from the outside, while data recorded in advance in the electronic circuit is obtained. There is described a wireless tag configured to include an electromagnetic induction coil for outputting to the outside by radio and to provide a magnetic part in or near the electromagnetic coil.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-91236
[Patent Document 2]
Japanese Patent Laid-Open No. 10-162262 [0006]
[Problems to be solved by the invention]
The present invention can easily write the presence / absence of a defect for each manufacturing process of the product in the storage means, and can easily read the presence / absence of a defect for each manufacturing process of the written product. It is intended to propose a manufacturing history management apparatus and management method that can easily know the history of the occurrence of defects in each manufacturing process of a product for each manufacturing process of the product and after shipping the product. .
[0007]
[Means for Solving the Problems]
1st invention is provided with the memory | storage means and writes the presence or absence of the defect generation for every manufacturing process of a product with respect to the identification tag incorporated in a product and the memory | storage means of the identification tag, and the written defect generation | occurrence | production It is a manufacturing history management device having an identification tag read / write device that reads presence / absence.
[0008]
According to the first aspect of the invention, storage means is provided, and the presence / absence of a defect in each manufacturing process of the product is written into the storage means of the identification tag incorporated in the product, and the writing is performed by the identification tag read / write device. The presence / absence of a defective occurrence is read out.
[0009]
According to a second aspect of the present invention, in the manufacturing history management device according to the first aspect, when a defect occurs in each manufacturing process of the product, the fact that the defect has occurred and the content of the defect are written in the storage means. It is.
[0010]
According to a third aspect of the present invention, in the manufacturing history management device of the second aspect, when the repair of the defective portion for each manufacturing process of the product is completed, the fact that the repair of the defective portion is completed is written in the storage means. This is a manufacturing history management device.
[0011]
A fourth invention is the manufacturing history management device according to the first invention, wherein the recognition tag and the reading / writing device for the recognition tag are configured to be wirelessly coupled at the time of reading and writing.
[0012]
The fifth invention includes a step of incorporating a wireless identification tag into a product before manufacturing the product, and a step of detecting whether or not a defect has occurred in each manufacturing process in each of the manufacturing steps of the product incorporating the wireless identification tag. And a manufacturing history management method including a step of writing a manufacturing history including the presence / absence of a defect based on the presence / absence of a defect detected in each manufacturing process into a wireless identification tag by wireless communication.
[0013]
According to a sixth aspect of the present invention, in the manufacturing history management method of the fifth aspect, the step of reading the entire manufacturing history from the wireless identification tag of the product after completion of the product by wireless communication; A manufacturing history management method including a step of determining pass / fail.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of a manufacturing history management apparatus according to an embodiment of the present invention will be described in detail with reference to FIG. Reference numeral 10 denotes a radio frequency identification tag (Radio Frequency Identification Tag), which is incorporated into a manufactured product. Reference numeral 20 denotes a wireless identification tag read / write device. The product is, for example, a main board of a digital camera.
[0015]
The wireless identification tag 10 stores storage unit data for storing the identification number of the product to be incorporated, the presence / absence of a defect in each manufacturing process of the product, the fact of the defect and the content of the defect, and the fact that the repair of the defective part has been completed. 12 is provided. The storage means 12 can be a non-volatile memory such as an EEPROM (Electrically-Erasable and Programmable Read-Only Memory).
[0016]
The storage unit 12 is controlled by the read / write control circuit 14 to write and read data. The storage unit 12 is connected to a radio frequency circuit (transmission / reception circuit) 16 via a read / write control circuit 14. Transmission / reception of the radio frequency circuit 16 is also controlled by the read / write control circuit 14. A transmitting / receiving antenna (or electromagnetic coil) 18 is connected to the radio frequency circuit 16. The radio frequency circuit 16 modulates the data supplied from the storage unit 12 through the read / write control circuit 14 and demodulates the modulated data from the antenna 18.
[0017]
The wireless identification tag read / write device 20 is connected to the storage means 12 of the wireless identification tag 10. The identification number of the product to be incorporated, the presence / absence of a defect for each manufacturing process of the product, the fact of the defect, the content of the defect, and the defect location This is a device for writing each data of the fact of completion of repair and reading each data.
[0018]
The wireless identification tag read / write device 20 has an identification number of a product to be incorporated in the storage means 12 of the wireless identification tag 10, presence / absence of a defect for each manufacturing process of the product, fact of defect occurrence, content of defect, and defect. There is provided a read / write circuit 26 for writing each data of the fact that the repair of the part is completed and reading each data.
[0019]
The read / write circuit 26 is connected to a radio frequency circuit (transmission / reception circuit) 24. A transmission / reception antenna (or electromagnetic coil) 22 is connected to the radio frequency circuit 24. The radio frequency circuit 24 includes an identification number of a product to be incorporated supplied from the read / write circuit 26, whether or not a defect has occurred in each manufacturing process of the product, the fact of the defect and the content of the defect, and the fact that the repair of the defective part has been completed. Each data is modulated and the modulated data from the antenna 22 is demodulated.
[0020]
Radio waves or electromagnetic waves are transmitted and received between the transmission / reception antennas (or electromagnetic coils) 18 and 22. Instead of the transmitting / receiving antennas (or electromagnetic coils) 18 and 22, an infrared transmitter / receiver may be provided.
[0021]
Next, operations of the wireless identification tag 10 and the wireless identification tag read / write device 20 in FIG. 1 will be described with reference to FIG. In FIG. 2, 30 indicates a product in which the wireless identification tag 10 is incorporated. The manufacturing process of the product 30 is indicated by, for example, A to E and the final process, that is, six processes Pa to Pf. In addition, Ra to Rf are the product identification number stored in the storage means 12 of the wireless identification tag 10, the presence or absence of a defect for each manufacturing process of the product, the fact that the defect has occurred, the content of the defect, and the repair of the defective part. Shows a history of each data of completion facts. Here, the product identification number ID is 12345, for example.
[0022]
Since no defects have occurred in the manufacturing, processing, processing, etc. A to C in the processes A to Pa, the storage content Ra of the storage means 12 corresponding to the manufacturing, processing, processing, etc. A to C is A: OK, storage In the content Rb, A: OK, B: OK, and in the stored content Rc, A: OK, B: OK, C: OK.
[0023]
Since a defect has occurred in D such as manufacturing, processing, and processing in the D process Pd, the storage contents Rd of the storage means 12 are A: OK, B: OK, C: OK, D: NG, and after NG The contents of the defect are shown in parentheses.
[0024]
Since no defects have occurred in the manufacturing, processing, processing, etc. in the E step Pe, the storage contents Re of the storage means 12 corresponding to the manufacturing, processing, processing, etc. E: A: OK, B: OK, C: OK , E: OK, and defects in manufacturing, processing, processing, etc. D are repaired and no defects occur, so D: repair is OK.
[0025]
Since there is no defect in the final determination in the final process Pf, for example, the finished product 30, the storage content Rf of the storage unit 12 corresponding to the completed product in the final process Pf is A: OK, B: OK, C: OK, D: Repair complete OK, E: OK, Judgment: OK. In this case, the wireless identification tag 10 is a quality assurance certificate.
[0026]
【The invention's effect】
According to the first aspect of the invention, there is provided a storage means, an identification tag incorporated in the product, and the presence / absence of occurrence of a defect for each manufacturing process of the product are written in the storage means of the identification tag, and the written defect Since it has an identification card read / write device that reads out the presence / absence of occurrence, the presence / absence of a defect in each production process of the product can be easily written in the storage means, and for each production process of the written product The presence or absence of defects can be easily read, and the history of the presence or absence of defects for each manufacturing process of the product can be easily known for each manufacturing process of the product and after the product has been shipped. It is possible to obtain a manufacturing history management device that can be suppressed, product quality can be improved, and product manufacturing costs can be reduced.
[0027]
According to the second invention, in the manufacturing history management device of the first invention, when a defect occurs for each manufacturing process of the product, the fact of the defect and the content of the defect are written in the storage means. The presence / absence of defects in each manufacturing process of the product can be easily written in the storage means, and the presence / absence of defects in each manufacturing process of the written product can be easily read out. History of the occurrence of defects in each manufacturing process can be easily known for each manufacturing process of the product and after the product is shipped, and the manufacturing history management can be used to know the fact of defects and the contents of defects. A device can be obtained.
[0028]
According to the third invention, in the manufacturing history management device of the second invention, when the repair of the defective part for each manufacturing process of the product is completed, the fact that the repair of the defective part is completed is stored in the storage means. Since writing is performed, the presence / absence of a defect in each manufacturing process of the product can be easily written in the storage means, and the presence / absence of a defect in each manufacturing process of the written product can be easily read out. It is possible to easily know the history of the occurrence of defects in each manufacturing process of the product for each manufacturing process of the product and after shipping the product, and also the fact that the repair of the defective part has been completed. A production history management device that can be known can be obtained.
[0029]
According to the fourth invention, in the manufacturing history management device of the first invention, the identification tag and the reading / writing device for the identification tag are configured to be wirelessly coupled at the time of reading and writing. The presence or absence of defects can be easily written to the storage means, and the presence or absence of defects for each manufacturing process of the written product can be easily read out, and defects can be generated for each manufacturing process of the product. The presence / absence history can be easily known for each manufacturing process of the product and after the product has been shipped, the recurrence of defects can be suppressed, the quality of the product can be improved, and the manufacturing cost of the product can be reduced. In addition, it is possible to obtain a manufacturing history management apparatus that can quickly and easily read the written occurrence of defects.
[0030]
According to the fifth aspect of the present invention, in the process of incorporating the wireless identification tag into the product before the production of the product, and in each manufacturing process of the product in which the wireless identification tag is incorporated, the presence / absence of a defect in each manufacturing process is detected. And a process of writing a manufacturing history including the presence or absence of a defect to a wireless identification tag based on the presence or absence of a defect detected in each manufacturing process by wireless communication. The presence or absence of defects can be easily written in the storage means, and the presence or absence of defects in each manufacturing process of the written product can be easily read, and the presence or absence of defects in each manufacturing process of the product Manufacturing history that can be easily known for each manufacturing process of the product and after the product is shipped, which can suppress the recurrence of defects, improve the quality of the product, and reduce the manufacturing cost of the product. Wear It is possible to obtain a management method.
[0031]
According to the sixth invention, in the manufacturing history management method of the fifth invention, the step of reading the entire manufacturing history from the wireless identification tag of the product by wireless communication after the product is completed, and the entire manufacturing history read In addition to the effects of the fifth invention, a history of the presence or absence of occurrence of defects for each production process of the product can be easily and remotely obtained in addition to the effect of the fifth invention. It is possible to obtain a manufacturing history management method that can easily determine the pass / fail of the product from the history of the presence / absence of occurrence of defects in each process.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating an example of a manufacturing history management apparatus according to an embodiment of this invention.
2 is a diagram for explaining the operation of the manufacturing history management apparatus of FIG. 1; FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Wireless identification tag, 12 ... Memory | storage means, 14 ... Reading / writing control circuit, 16 ... Radio frequency circuit, 18 ... Transmission / reception antenna, 20 ... Reading / writing apparatus for wireless identification tags, 22 ... Transmission / reception antenna, 24 ... Radio frequency circuit, 26 ... Read / write circuit

Claims (6)

An identification tag provided with a storage means and incorporated in the product;
A manufacturing method, comprising: writing and writing the presence / absence of a defect for each manufacturing process of the product into the storage unit of the identification tag, and reading and writing the written / not detected defect History management device. In the manufacturing history management device according to claim 1,
A manufacturing history management apparatus characterized in that, when a defect occurs in each manufacturing process of the product, the fact of the defect and the content of the defect are written in the storage means. In the manufacturing history management device according to claim 2,
The manufacturing history management apparatus according to claim 1, wherein when the repair of the defective part for each manufacturing process of the product is completed, the fact of the repair of the defective part is completed to the storage means. In the manufacturing history management device according to claim 1,
The manufacturing history management device, wherein the identification tag and the identification tag read / write device are configured to be wirelessly coupled at the time of the read / write. Incorporating a wireless identification tag into the product before manufacturing the product;
In each manufacturing process of the product incorporating the wireless identification tag, a process of detecting the presence or absence of a defect in each manufacturing process;
A manufacturing history management method including a step of writing a manufacturing history including presence / absence of a defect based on presence / absence of occurrence of a defect detected in each manufacturing process to the wireless identification tag by wireless communication. In the manufacturing history management method according to claim 5,
Reading the entire manufacturing history from the wireless identification tag of the product after completion of the product by wireless communication;
And a step of determining whether the product is acceptable or not from the entire read manufacturing history.

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